"""Initial schema: users, refresh_tokens, subscriptions, storage_records,
backup_metadata, plugins, plugin_installations, plugin_reviews, revenue_events.

Revision ID: 001
Revises:
Create Date: 2026-03-02
"""

from __future__ import annotations

from typing import Sequence, Union

import sqlalchemy as sa
from alembic import op
from sqlalchemy.dialects import postgresql

revision: str = "001"
down_revision: Union[str, None] = None
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    # ── Enum types — idempotent creation via exception handling ───────────
    op.execute("""
        DO $$ BEGIN
            CREATE TYPE billing_tier AS ENUM ('free', 'pro', 'power', 'team');
        EXCEPTION WHEN duplicate_object THEN NULL;
        END $$;
    """)
    op.execute("""
        DO $$ BEGIN
            CREATE TYPE plugin_status AS ENUM ('pending_review', 'approved', 'rejected');
        EXCEPTION WHEN duplicate_object THEN NULL;
        END $$;
    """)
    op.execute("""
        DO $$ BEGIN
            CREATE TYPE review_decision AS ENUM ('approved', 'rejected');
        EXCEPTION WHEN duplicate_object THEN NULL;
        END $$;
    """)

    # ── users ─────────────────────────────────────────────────────────────
    op.create_table(
        "users",
        sa.Column("id", postgresql.UUID(as_uuid=False), nullable=False),
        sa.Column("email", sa.String(255), nullable=False),
        sa.Column("password_hash", sa.String(255), nullable=False),
        sa.Column("tier", postgresql.ENUM("free", "pro", "power", "team", name="billing_tier", create_type=False), nullable=False, server_default="free"),
        sa.Column("stripe_customer_id", sa.String(255), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
        sa.PrimaryKeyConstraint("id"),
        sa.UniqueConstraint("email"),
    )
    op.create_index("ix_users_email", "users", ["email"])

    # ── refresh_tokens ────────────────────────────────────────────────────
    op.create_table(
        "refresh_tokens",
        sa.Column("id", postgresql.UUID(as_uuid=False), nullable=False),
        sa.Column("user_id", postgresql.UUID(as_uuid=False), nullable=False),
        sa.Column("token_hash", sa.String(64), nullable=False),
        sa.Column("expires_at", sa.DateTime(timezone=True), nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
        sa.PrimaryKeyConstraint("id"),
        sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="CASCADE"),
        sa.UniqueConstraint("token_hash"),
    )
    op.create_index("ix_refresh_tokens_user_id", "refresh_tokens", ["user_id"])
    op.create_index("ix_refresh_tokens_token_hash", "refresh_tokens", ["token_hash"])

    # ── subscriptions ─────────────────────────────────────────────────────
    op.create_table(
        "subscriptions",
        sa.Column("id", postgresql.UUID(as_uuid=False), nullable=False),
        sa.Column("user_id", postgresql.UUID(as_uuid=False), nullable=False),
        sa.Column("stripe_subscription_id", sa.String(255), nullable=True),
        sa.Column("tier", postgresql.ENUM("free", "pro", "power", "team", name="billing_tier", create_type=False), nullable=False, server_default="free"),
        sa.Column("status", sa.String(50), nullable=False, server_default="free"),
        sa.Column("current_period_end", sa.DateTime(timezone=True), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
        sa.PrimaryKeyConstraint("id"),
        sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="CASCADE"),
        sa.UniqueConstraint("user_id"),
    )
    op.create_index("ix_subscriptions_user_id", "subscriptions", ["user_id"])
    op.create_index("ix_subscriptions_stripe_id", "subscriptions", ["stripe_subscription_id"])

    # ── storage_records ───────────────────────────────────────────────────
    op.create_table(
        "storage_records",
        sa.Column("id", postgresql.UUID(as_uuid=False), nullable=False),
        sa.Column("user_id", postgresql.UUID(as_uuid=False), nullable=False),
        sa.Column("table_name", sa.String(100), nullable=False),
        sa.Column("s3_key", sa.String(500), nullable=False),
        sa.Column("checksum", sa.String(64), nullable=False),
        sa.Column("size_bytes", sa.Integer, nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
        sa.PrimaryKeyConstraint("id"),
        sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="CASCADE"),
    )
    op.create_index("ix_storage_records_user_id", "storage_records", ["user_id"])

    # ── backup_metadata ───────────────────────────────────────────────────
    op.create_table(
        "backup_metadata",
        sa.Column("id", postgresql.UUID(as_uuid=False), nullable=False),
        sa.Column("user_id", postgresql.UUID(as_uuid=False), nullable=False),
        sa.Column("s3_key", sa.String(500), nullable=False),
        sa.Column("version", sa.Integer, nullable=False),
        sa.Column("timestamp", sa.BigInteger, nullable=False),
        sa.Column("checksum", sa.String(64), nullable=False),
        sa.Column("size_bytes", sa.Integer, nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
        sa.PrimaryKeyConstraint("id"),
        sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="CASCADE"),
    )
    op.create_index("ix_backup_metadata_user_id", "backup_metadata", ["user_id"])

    # ── plugins ───────────────────────────────────────────────────────────
    op.create_table(
        "plugins",
        sa.Column("id", sa.String(255), nullable=False),
        sa.Column("name", sa.String(255), nullable=False),
        sa.Column("description", sa.Text, nullable=False, server_default=""),
        sa.Column("version", sa.String(50), nullable=False, server_default="1.0.0"),
        sa.Column("author_id", postgresql.UUID(as_uuid=False), nullable=True),
        sa.Column("author_name", sa.String(255), nullable=False, server_default=""),
        sa.Column("category", sa.String(100), nullable=False, server_default=""),
        sa.Column("price_cents", sa.Integer, nullable=False, server_default="0"),
        sa.Column("permissions", sa.Text, nullable=False, server_default="[]"),
        sa.Column("status", postgresql.ENUM("pending_review", "approved", "rejected", name="plugin_status", create_type=False), nullable=False, server_default="pending_review"),
        sa.Column("s3_package_key", sa.String(500), nullable=True),
        sa.Column("install_count", sa.Integer, nullable=False, server_default="0"),
        sa.Column("avg_rating", sa.Float, nullable=False, server_default="0.0"),
        sa.Column("rejection_reason", sa.Text, nullable=True),
        sa.Column("submitted_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
        sa.PrimaryKeyConstraint("id"),
        sa.ForeignKeyConstraint(["author_id"], ["users.id"], ondelete="SET NULL"),
    )

    # ── plugin_installations ──────────────────────────────────────────────
    op.create_table(
        "plugin_installations",
        sa.Column("id", postgresql.UUID(as_uuid=False), nullable=False),
        sa.Column("plugin_id", sa.String(255), nullable=False),
        sa.Column("user_id", postgresql.UUID(as_uuid=False), nullable=False),
        sa.Column("installed_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
        sa.PrimaryKeyConstraint("id"),
        sa.ForeignKeyConstraint(["plugin_id"], ["plugins.id"], ondelete="CASCADE"),
        sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="CASCADE"),
        sa.UniqueConstraint("plugin_id", "user_id", name="uq_plugin_user"),
    )
    op.create_index("ix_plugin_installations_plugin_id", "plugin_installations", ["plugin_id"])
    op.create_index("ix_plugin_installations_user_id", "plugin_installations", ["user_id"])

    # ── plugin_reviews ────────────────────────────────────────────────────
    op.create_table(
        "plugin_reviews",
        sa.Column("id", postgresql.UUID(as_uuid=False), nullable=False),
        sa.Column("plugin_id", sa.String(255), nullable=False),
        sa.Column("reviewer_id", postgresql.UUID(as_uuid=False), nullable=True),
        sa.Column("decision", postgresql.ENUM("approved", "rejected", name="review_decision", create_type=False), nullable=False),
        sa.Column("notes", sa.Text, nullable=True),
        sa.Column("reviewed_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
        sa.PrimaryKeyConstraint("id"),
        sa.ForeignKeyConstraint(["plugin_id"], ["plugins.id"], ondelete="CASCADE"),
        sa.ForeignKeyConstraint(["reviewer_id"], ["users.id"], ondelete="SET NULL"),
    )
    op.create_index("ix_plugin_reviews_plugin_id", "plugin_reviews", ["plugin_id"])

    # ── revenue_events ────────────────────────────────────────────────────
    op.create_table(
        "revenue_events",
        sa.Column("id", postgresql.UUID(as_uuid=False), nullable=False),
        sa.Column("plugin_id", sa.String(255), nullable=False),
        sa.Column("user_id", postgresql.UUID(as_uuid=False), nullable=False),
        sa.Column("amount_cents", sa.Integer, nullable=False, server_default="0"),
        sa.Column("developer_share_cents", sa.Integer, nullable=False, server_default="0"),
        sa.Column("stripe_transfer_id", sa.String(255), nullable=True),
        sa.Column("paid_at", sa.DateTime(timezone=True), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
        sa.PrimaryKeyConstraint("id"),
        sa.ForeignKeyConstraint(["plugin_id"], ["plugins.id"], ondelete="CASCADE"),
        sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="CASCADE"),
    )
    op.create_index("ix_revenue_events_plugin_id", "revenue_events", ["plugin_id"])
    op.create_index("ix_revenue_events_user_id", "revenue_events", ["user_id"])


def downgrade() -> None:
    op.drop_table("revenue_events")
    op.drop_table("plugin_reviews")
    op.drop_table("plugin_installations")
    op.drop_table("plugins")
    op.drop_table("backup_metadata")
    op.drop_table("storage_records")
    op.drop_table("subscriptions")
    op.drop_table("refresh_tokens")
    op.drop_table("users")

    op.execute("DROP TYPE IF EXISTS review_decision")
    op.execute("DROP TYPE IF EXISTS plugin_status")
    op.execute("DROP TYPE IF EXISTS billing_tier")